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Was a drummer who headed a jazz trio, The We Three, and was an award-winning songwriter. Studied acting with James Tuttle and musical comedy with Charles Nelson Reilly. Has a deformed left hand that he takes great pains to hide during the run of M*A*S*H on TV. Usually hidden behind his clipboard. His character 'Radar' on "M*A*S*H*", who showed a fondness for the care of animals, was actually inspired from Gary's true love for wildlife. He once worked for the Animal Rehabilitation Clinic in Southern California where he nurtured and cared for many species of birds such as the brown pelican, and many other animals including opossums, grey squirrels, raccoons and abandoned creatures needing special attention. Was licensed by the State of California to care for wounded animals. Is a renowned painter of Wildlife Art. Starting in 1997, Gary had to refuse a lot of his fan-mail due to his address being published on the internet, as he would state in a stamped message on fan's return envelopes. Launched a chain of ice cream/frozen yogurt stores in Hawaii in the late 1970s, which had limited success. He attended the "Hollywood Collectors & Celebrities Show", at Beverly Garland's Holiday Inn, in North Hollywood, California. Originated the role of Charlie Brown in the off-Broadway musical "You're a Good Man, Charlie Brown". Holds several patents on fishing lures. Was the first "M*A*S*H" actor to be cast for the TV series Has one daughter: Gena and two sons: Miles and Jordan Along with G. Wood and Timothy Brown, he is one of only three actors to appear in both the original 'MASH' movie and the subsequent spin-off series. Big Bird from Sesame Street's teddy bear, Radar, was named after Gary's MASH character. Gary gave it to Big Bird as a gift after visiting the Sesame Street set in the 70s. Played Walter 'Radar' O'Reilly in four different Mash productions: the feature movie MASH, regular in television series M*A*S*H, guest star appearance on After MASH, and the television pilot W*A*L*T*E*R.